BK-7 Biconvex Lenses
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Symmetrically convex positive lenses
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Focal lengths from 6.4 to 300mm
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Diameters from 5 to 100mm
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Anti-Reflection coatings available
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For additional sizes see Micro Optics
Symmetrical biconvex lenses are most useful when dealing with finite conjugate points. This makes them ideal for 1:1 imaging applications or for use in multi-element systems.
Add Selected to Cart Compare Selected
| Number | |
|---|---|
| 013-0120 | |
| 013-0120-A55 | |
| 013-0130 | |
| 013-0130-A55 | |
| 013-0140 | |
| 013-0140-A55 | |
| 013-0160 | |
| 013-0160-A55 | |
| 013-0170 | |
| 013-0170-A55 |
| D (mm) | f (mm) | tc (mm) | te (mm) | fb (mm) | r (mm) | Centration (arcmin) | Surface Quality | Material | Coating | Focal Length tolerance | Clear Aperture (%) | Diameter tolerance | Thickness tolerance | Design Wavelength | Bevel |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5.0 | 6.4 | 2.5 | 1.5 | 5.6 | 6.23 | ≤ 3 | 40 - 20 | BK7 | none | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 6.4 | 2.5 | 1.5 | 5.6 | 6.23 | ≤ 3 | 40 - 20 | BK7 | BMAR 425-675nm | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 8.4 | 2.1 | 1.4 | 7.6 | 8.30 | ≤ 3 | 40 - 20 | BK7 | none | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 8.4 | 2.1 | 1.4 | 7.6 | 8.30 | ≤ 3 | 40 - 20 | BK7 | BMAR 425-675nm | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 10.3 | 1.9 | 1.3 | 9.7 | 10.38 | ≤ 3 | 40 - 20 | BK7 | none | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 10.3 | 1.9 | 1.3 | 9.7 | 10.38 | ≤ 3 | 40 - 20 | BK7 | BMAR 425-675nm | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 12.3 | 1.7 | 1.2 | 11.7 | 12.46 | ≤ 3 | 40 - 20 | BK7 | none | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 12.3 | 1.7 | 1.2 | 11.7 | 12.46 | ≤ 3 | 40 - 20 | BK7 | BMAR 425-675nm | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 15.3 | 1.6 | 1.2 | 14.7 | 15.57 | ≤ 3 | 40 - 20 | BK7 | none | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |
| 5.0 | 15.3 | 1.6 | 1.2 | 14.7 | 15.57 | ≤ 3 | 40 - 20 | BK7 | BMAR 425-675nm | ±2% | ≥ 90 | +0, -0.1mm | ±0.15mm | 546.1 | 0.2mm x 45° typical |